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What is meant by this keyword in javascript a it

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20. What is meant by “this” keyword in JavaScript?A.It refers current objectB.It refers previous objectC.It is variable which contains valueD.None of the aboveE.
21. Which operator can be used to Joins (concatenates) two strings and assigns the joinedstring to the first operand?
22. Which event can be generated when data changes in a control such as a text field?
23. Which one is the advantages of JavaScript?
24. What is output of following code −num=3while True:if(num%0o12==0breakprint(num)num+=A.3 4 5 6 7 8 9 10 11 12B.3 4 5 6 7 8 9C.3 4 5 6 7 8 9 10 11D.None of the above):1
25. Select the option for following code −s=fordinrange(0,5,0.1s+=print(s0):d)C
26. What is the output of the code?deff():globalprint('z is: ',zz=50print('new value of global z is: ',zf()print('Value of z is: ',zz)))
value of z is 50ORI:27. Of the following technologies, which one provides the ability to dynamically interactwith Web page layout? Ajax
28. AJAX based on ______A.JavaScript and XMLB.JavaScript and JavaC.BScript and XMLD.JavaScript and HTTP requests
29. Which of the following JavaScript cannot do?

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Term
Spring
Professor
AK
Tags
C colspan, A Client side

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